utilizing carbon dioxide or dry chemical fire extinguishers
utilizing soda and acid fire extinguishers
blowing the flames out
letting it burn itself out
第1题:
The amount of LFG that may be loaded into a given tank is determined by ______.
A.Checking the loading sheet
B.Loading to within 1 percent of outage
C.Loading to within 10 percent of the safety relief valve setting
D.Filling to the maximum level indicated on the liquid level gaging device
第2题:
A galley grease fire on the stove may be extinguished using______.
A.water
B.foam
C.the range hood extinguishing system
D.fire dampers
第3题:
Clearly the medicine ______.
A.may be dangerous for small children
B.can't be taken by children under twelve years old
C.may be taken by children but not by adults
D.may be taken by adults but not by children
第4题:
第5题:
Generally, the first action in extinguishing an LFG fire caused by escaping gas is to ______.
A.sweep flames away with water spray
B.shut off the leak
C.use a chemical foam fire extinguisher
D.call the local fire department
第6题:
What is NOT a requirement for the preparation of used,gasoline-propelled cars if they are to be carried as ordinary cargo and not as hazardous cargo ________.
A.The engine must be run until it dies from lack of fuel
B.The fuel tank must be inerted with CO2
C.The ignition key may not be in the ignition
D.The vehicle must be inspected for fuel leaks
第7题:
Flame screens are used to ______.
A.contain flammable fumes
B.protect firefightiers from flames
C.prevent flames from entering tanks
D.keep flame and sparks from getting out of an engine’s exhaust system
第8题:
According to the article, which of the following statements is not true?
A.Tightly sealed house may be harmful in another aspect.
B.The house is unsealed to prevent the air from leaking.
C.The air always leaks from cracks.
D.New house is worse than old one in the aspect of indoor pollution.
第9题:
第10题: